\Bibitem{VoiPet82} \by O.~V.~Voinov, A.~G.~Petrov \paper Stability of relative motion of phases in two-phase flows \jour Prikl. Mekh. Tekh. Fiz. \yr 1982 \vol 23 \issue 1 \pages 83--90 \mathnet{http://mi.mathnet.ru/pmtf5778} \transl \jour J. Appl. Mech. Tech. Phys. \yr 1982 \vol 23 \issue 1 \pages 76--82 \crossref{https://doi.org/10.1007/BF00911982}